package com.sky.aspect;

import com.sky.annotation.AutoFill;
import com.sky.constant.AutoFillConstant;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.time.LocalDateTime;

//
@Aspect
@Slf4j
@Component
public class AutoFillAspect {
    @Pointcut("execution(* com.sky.mapper.*.*(..))&&@annotation(com.sky.annotation.AutoFill)")
    public void autoFillPointCut(){}
    @Before("autoFillPointCut()")
    public void autoFill(JoinPoint joinPoint){
        log.info("开始进行公共字段自动填充。。");
       MethodSignature signature= (MethodSignature) joinPoint.getSignature();
      AutoFill autoFill= signature.getMethod().getAnnotation(AutoFill.class);
        OperationType operationType=autoFill.value();
        Object[] arge=joinPoint.getArgs();
        Object object=arge[0];
         LocalDateTime time= LocalDateTime.now();
        Long id= BaseContext.getCurrentId();
        if (operationType==OperationType.INSERT){
            try {
               Method setCreateTime=object.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_TIME,LocalDateTime.class);
               Method setCreateUser=object.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_USER,Long.class);
               Method setUpdateUser=object.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER,Long.class);
               Method setUpdateTime=object.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME,LocalDateTime.class);

               setCreateTime.invoke(object,time);
               setUpdateTime.invoke(object,time);
               setCreateUser.invoke(object,id);
               setUpdateUser.invoke(object,id);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }else if (operationType==OperationType.UPDATE){
            try {
                Method setUpdateUser=object.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER,Long.class);
                Method setUpdateTime=object.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME,LocalDateTime.class);

                setUpdateTime.invoke(object,time);
                setUpdateUser.invoke(object,id);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}
